These are used Yingli 230W Solar Panels. The cells do have some yellowing. We have tested multiple panels and they were producing 175-185 watts under good sun. Manufacturing labels are intact but various levels of fading. These make a great into panel to DIY solar!

These panels have yellowed/browned with age. Producing about 80% of stated power.

Features

• 60 cell, polycrystalline
• Weather resistant. Certified for salt mist and ammonia resistance
• Anti-Reflection surface treatment
• IP65 Junction Box w/standard solar connectors
• Frame: Anodized aluminum alloy

Yingli 230W Solar Panel Specifications

• Rated Power: 230W
• Open circuit voltage (VOC): 37.0 V
• Max power voltage (VMP): 29.5 V
• Short circuit current (ISC): 8.50 A
• Max power current: 8.14 A
• Power Tolerance 0/+3%
• Maximum system voltage: 600V (UL)
• Fuse Rating: 20 A
• Weight: 43.65 lbs.
• Dimensions: 64.96 × 38.98 × 1.97 inches
• Warranty: 1 Year Warranty

Still have questions? Give us a call at 877-242-2792